— Steel slag is generally regarded as a supplementary cementitious material in cement-based materials, which is conducive to the realization of the goal of carbon peak and carbon neutralization. However, the lower cementitious activity and poorer volume stability of steel slag limit its high dosage in cement-based materials. In this paper, steel …

 — 1. Introduction. Steel slag, as a co-product of steel-making procedure, is one of the largest industrial solid wastes. In recent years, the accumulated inventory of steel scrap in China has exceeded 1.1 billion tons, while the integrated utilization rate at roughly 22% (Sun et al., 2022a).Contrary to the massive accumulation of steel scrap, the …

 — 1 INTRODUCTION. Blast furnace slag (BFS) and steel slag (SS), as industrial solid wastes produced in the process of steel-making, account for 80%–90% of the total smelting slag. [] BFS accounts for about 30% of pig iron output, [] while SS accounts for 10%–15% of the crude steel output. [] SS comprises various slags, …

 — The chemical composition and cooling of molten steel slag have a great effect on the physical and chemical properties of solidified steel slag. Steel slag with high basicity and being cooled properly can exhibit cementing property. Ground steel slag has been used in several different cementing systems. The use of steel slag in these …

 — Wang et al. investigated the effects of substituting carbonated steel slag powder for cement and steel slag powder in concrete at mass ratios of 5%, 15%, 25%, and 10% and 20% of total cementitious materials on the working performance and mechanical properties of concrete. After carbonation pretreatment, the contents of f-MgO and f-CaO …

 — To promote the resource utilization of steel slag and improve the production process of steel slag in steelmaking plants, this research studied the characteristics of three different processed steel slags from four steelmaking plants. The physical and mechanical characteristics and volume stability of steel slags were analyzed through density, water …

 — Slag is not only required in the smelting process in the furnace, but also indispensable for secondary refining of steel, hot metal pretreatment, and steel continuous casting. The name of "slag" is not precise enough, but it is still being used. Slag that has been melted into a liquid state at high temperature is called dross.

 — With the rapid development of China's steel industry, rising rates of steel production have led to the increase of steel slag emissions. Steel slag is a kind of industrial solid waste produced in the process of iron and steel smelting, and its emission is about 15 wt%–20 wt% of crude steel output [].According to the data released by the World Iron …

Steel Slag BOF slag, commonly known as steel slag is another waste from Iron & Steel Industry. It has shown potential for use as a raw mix component up to 10% in the manufacture of cement clinker. Steel slag can also replace granulated blast furnace slag up to 10% in the manufacture of Portland Slag Cement. Steel slags are produced at steel …

 — As two kinds of solid wastes, waste tires and steel slag have caused serious threats to the environment. Both waste tire rubber (WTR) and steel slag powder (SSP) can improve the performance of asphalt, while the performance indexes and modification mechanism of modified asphalt are not clear. In this paper, asphalt modified with SSP …

 — Steel slag has great potential as a supplementary cementitious material, because its composition is similar to cement and it has a certain cementitious activity after grinding it into micronized powder [[11], [12], [13], [14]].However, the low hydration activity of steel slag compared to cement limits its application [15], [16], [17], and the reasons for …

 — It is explicitly pointed out that the utilization rate of steel slag is still low, resulting in the occupation of a large number of land resources and ecological and …

 — Slag from iron and steel plants (steel slags, blast furnace slag, etc.), storage of the ashes of burning coals (bottom ash, fly ash) at thermal power plants, and …

 — Recently, the effect of using steel slag alone is not satisfactory and the performance of blended cementitious materials is expected to improve after compounding with other admixtures. In this study, steel slag powder (SSP) and SP by-products from manufactured sand were employed with a total dose of less than 30% as a replacement …

 — Steel slags have a chemical composition close to that of the Portland cement clinker, mainly constituted by calcium-silicates and calcium-ferrites, which makes this industrial waste potentially usable as a raw material for cement and concrete production [91].The presence of steel slag in the clinker manufacturing process reduces the …

 — The steel slag produced during the primary stage of steel production is referred to as furnace slag or tap slag. This is the major source of steel slag aggregate. After being tapped from the furnace, the molten steel is transferred in a ladle for further refining to remove additional impurities still contained within the steel.

 — Therefore, increasing production of steel slag is becoming a serious disposal problem. Given this, slag valorisation technologies are of high importance in the use of …

 — The use of slag wool can not only reduce the production cost of slag wool, if the liquid blast furnace slag is directly used, the utilisation rate of the sensible heat of blast furnace slag can be more than 80%. A large number of high-temperature molten slag produced in the steel production process, the slag temperature is as high as 1400∼ ...

 — Asphaltic concrete with steel slag powder, bamboo leaf ash and quarry dustvas fillers were compared. • The performance of the replaced asphaltic concrete was evaluated using Marshal stability, ITS, cantabro test, and so on. • Steel slag powder improved asphaltic concrete performed better than the control and bamboo leaf. •

 — BOF slag can be used as a road construction material, as a substitute for natural aggregates in asphalt mixtures, and as a raw material for cement production. It can also be utilized as a fertilizer in agriculture due to its calcium and magnesium content, which can help improve soil fertility [62], [74], [85]. LF slag can be used as a ...

 — The accumulation of steel slag and other industrial solid wastes has caused serious environmental pollution and resource waste, and the resource utilization of steel slag is imminent. In this paper, alkali-activated ultra-high-performance concrete (AAM-UHPC) was prepared by replacing ground granulated blast furnace slag (GGBFS) …

 — In this paper, steel slag powder was used to replace part of the cement in road concrete, and group tests were carried out on coarse aggregates with different water–cement (W/C) ratios, different steel slag parameters, and different particle sizes. A sample of 100 mm × 100 mm × 100 mm was prepared and cured for 3 days, 7 days, and …

 — Among them, nearly 3 billion tonnes of steel slag are not effectively used, and the damage to the environment cannot be ignored. Steel slag is an industrial solid waste produced during the steel making …

 — This can be explained that HA not only hinders the hydration of cement and steel slag, but also dissolves the Ca(OH) 2 produced by cement and steel slag hydration, thus reducing the pH of HCSDS. From Fig. 15 (b), the pH values corresponding to the maximum UCS of HCSDS containing 0.5, 1.5 and 2.5% HA are 9.99, 9.89 and 9.91, …

 — During steel production, the impurities in the hot metal react with the fluxes forming the steel slag. Chemical constituents of this steel slag (SS) are relevant to iron/steelmaking or blended cement manufacture. Harmful impurities present in it, however, limit its recycling to these applications. Japan, Europe, and the US consume a significant …

 — Utilizing treated steel slag as coarse/fine aggregate in concrete production is a high-value solution that can alleviate the worry about resource depletion and solve the …

 — Waste heat recovery from hot steel slag was determined in a granular bed through the combination of numerical simulation and an industrial test method. First, the effective thermal conductivity of the granular bed was calculated. Then, the unsteady-state model was used to simulate the heat recovery under three different flow fields (O-type, S …

 — Steel slag is a by-product of the steel production process, accounting for approximately 15% of the whole crude steel output [1].The accumulation of untreated steel slag not only occupies a significant amount of land but also leads to the leaching of heavy metal ions (such as vanadium, chromium, arsenic, lead, cadmium), polluting surrounding …

 — Protective slag is coated on the surface of molten steel during continuous casting, the flow and heat transfer state of the protective slag is a decisive factor affecting the inflow and consumption of liquid slag and is also an important prerequisite for stabilizing and improving the quality of continuous casting billets. Based on the Navier Stokes fluid …

 — This paper first illustrates the production processes, properties, and applications of steel slag, and then summarizes the key findings of the environmental …